I have done lots of research in DBS and witnessed and/or assisted with approximately 100 procedures. The headframe application, initial targeting based upon imaging, scalp incision, burrhole drilling and dura incision is done by a neurosurgeon, who is fellowship-trained in stereotactic and functional neurosurgery. The neurophysiologic mapping with microelectrode recording is done either by a one or more of a neurophysiologist, neurologist, and the neurosurgeon. The management of the DBS post-surgery is usually done by the neurology team (specialized in movement disorders), though the neurophysiologist was involved in some programming and troubleshooting. Sometimes the neurologist and neurophysiologist are the same person. It is very much a team approach, but yes, the neurosurgeon is the only one doing the incisions, craniotomies, and physical device implantation.